LoongArch: Fix acpi_package_ids[] array overflow

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-89904
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-09-16 11:16:59 UTC
Updated2026-09-16 15:18:16 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: LoongArch: Fix acpi_package_ids[] array overflow With LoongArch virt machine, a typical setting is one core per socket, there will max 256 sockets (packages) on one VM. With PPTT acpi table, array acpi_package_ids[] will be overflowed. Here change the array size of acpi_package_ids[] with the max value of MAX_PACKAGES and KVM_MAX_VCPUS.

Risk And Classification

Primary CVSS: v3.1 8.4 HIGH from 416baaa9-dc9f-4396-8d5f-8c081fb06d67

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

VersionSourceTypeScoreSeverityVector
3.1416baaa9-dc9f-4396-8d5f-8c081fb06d67Secondary8.4HIGHCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
3.1CNADECLARED8.4HIGHCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected f18992be262d6515c94bf4bf6ce7598135076771 0195e04b1eec8fb00e2db9c5e55655a3f5e76f60 git Not specified
CNA Linux Linux affected 4427a33faabb4b81511b99dfee18ce0a38b5b5df d3fd094c13c6d0b74f246461ca4cf427d539c8e8 git Not specified
CNA Linux Linux affected 4e8f58620f6717f72f3d88a2c8f25c0c656d0ba7 6311b8c471afa33c18adbe4eb16f862936b71ca3 git Not specified
CNA Linux Linux affected 4e8f58620f6717f72f3d88a2c8f25c0c656d0ba7 2a2367d46d7a4ee4122b7a86e57125542dbbe963 git Not specified
CNA Linux Linux affected 496bc868d9066e034787aa14b8ad6c23e77b51ef git Not specified
CNA Linux Linux affected 6.12.101 6.12.110 semver Not specified
CNA Linux Linux affected 6.18.42 6.18.51 semver Not specified
CNA Linux Linux affected 7.1.6 7.2 semver Not specified
CNA Linux Linux affected 7.2 Not specified
CNA Linux Linux unaffected 7.2 semver Not specified
CNA Linux Linux unaffected 6.12.110 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.51 6.18.* semver Not specified
CNA Linux Linux unaffected 7.2.5 7.2.* semver Not specified
CNA Linux Linux unaffected 7.3-rc1 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/2a2367d46d7a4ee4122b7a86e57125542dbbe963 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/d3fd094c13c6d0b74f246461ca4cf427d539c8e8 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/0195e04b1eec8fb00e2db9c5e55655a3f5e76f60 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/6311b8c471afa33c18adbe4eb16f862936b71ca3 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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